Field encryption packaging/distribution change

In support of go-to-market goals with field encryption, please verify or correct that…

• Source code headers indicate correct copyright and EULA
• Add the EULA to the repository
• For any distribution methods (for instance nuget is supposed to support this) where a EULA clickthrough can be supplied, add it to the clickthrough
• Ensure on the agreed upon repository and remove any earlier versions of the repository. History in the same repository (say with different headers) is fine.